Tiotropium add-on therapy is safe and reduces seasonal worsening in paediatric asthma patients

od Vogelberg, Christian, Szefler, Stanley J., Vrijlandt, Elianne J.L.E., Boner, Attilio L., Engel, Michael, El Azzi, Georges, Vulcu, Sebastian Dan, Moroni-Zentgraf, Petra M., Eickmeier, Olaf, Hamelmann, Eckard H.
Izdano u Eur Respir J (2019)